package object;

public class ObjectDemo {
    public static void main(String[] args) {
        Point p1=new Point(100,200);
        Point p2=new Point(100,200);
        System.out.println(p1==p2);

        System.out.println(p1.equals(p2));

        String s1="hello";
        StringBuilder builder1=new StringBuilder("hello");
        StringBuilder builder2=new StringBuilder("hello");

        System.out.println(builder1.equals(builder2));//false
        System.out.println(s1.equals(builder1));//类型不同,没有可比性





        Point p=new Point(100,200);
        System.out.println(p);
        System.out.println(p.toString());

    }
}
